Grandstream 24 Port GXW4224 FXS Analog VoIP Gateway
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Grandstream 24 Port GXW4224 FXS Analog VoIP Gateway

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Quick Overview

24-Port SIP FXS Gateway by Grandstream connects analog phones to an VoIP PBX

What is the Grandstream 24 Port GXW4224 FXS Analog VoIP Gateway?

The GXW4224 gateway enables small and medium businesses to create a cost-effective hybrid IP and analog telephone systems and enjoy the benefits of VoIP communications while preserving investment on existing analog phones and traditional PBX systems.  Also perfect for a Lodging and Hospitality System when paired with the

Telco Depot IP PBX



  • High density SIP based analog telephone VoIP gateway
  • Fully interoperable with leading IP-PBX and Softswitch systems
  • Features 24 FXS telephone ports both RJ11 and 50-pin Telco connector
  • Up to 2 SIP server profiles per system and independent account per port
  • Supported voice codecs include G.711, G.723, G.726A/B/E, iLBC, T.38 Fax
  • Carrier grade G.168 line echo cancellation
  • Ideal IP enabler for analog phones, faxes and legacy PBX systems

 Telco Depot offers a wide variety of IP PBXs and VoIP Gateways and VoIP Phones.  Be sure to check these out.


Technical Details

Telephone InterfacesGXW4216/24/32 x RJ11 FXS ports plus & 1/1/2 x 50 pin Telco connectors
GXW4248: 2 50 pin Telco connectors
Network Interfaces1 x 10M/100M/1000Mbps auto-sensing RJ45 port
Audio CodecsG.711, G. 723, G.726 (40/32/24/16), G.729A/B/E, iLBC
LED IndicatorsLAN Link, LAN Activity, Per Telephone port
LCD DisplayBacklit 128x32 grpahic LCD display with support for multiple languages
Voice-over-Pack CapabilitiesG.168 carrier grade line echo cancellation, dynamic jitter buffer, modem detection & auto-switch to G.711
Voice CompressionG.711, G.723, G.726, G.729 A/B, iLBC
Fax over IPT.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through, Fax Datapump V.17, V.21, V27ter, V29 for T.38 fax relay
Telephony FeaturesCaller ID display or block, call waiting, blind or attended transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED (NEON LED) support and stutter tone, auto dial, flexible dial plan
QoSDiffServ, TOS, 802.1P/Q VLAN tagging
DTMF MethodFlexible DTMF transmission methods including In-audio, RFC2833, and /or SIP INFO
SingalingSIP (RFC 3261) over UDP/TCP/TLS
SIP Server Profiles & Accounts Per System4 distinct SIP server profiles per system and independent SIP account per telephone port
ProvisioningTFTP, HTTP, HTTPS, TR069

Warranty Information:

  • Manufacturer:
Grandstream 24 Port GXW4224 FXS Analog VoIP Gateway

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